+34 932 933 806
Contact us if you have any questions

Online billing and accounting program for self-employed workers and SMEs

Manage your company's accounts without being an expert.

Know the status of your business, wherever you are: invoices received, collections and payments ...

With Contasimple you will save time so you can manage your business.

Sign up free
Without credit card · No commitments
Enjoy free 30 days of Ultimate Plan

Create and send your professional invoices

Professional and personalized templates .
Choose the invoice templates that best suit your business.

Know the status of your bills : collected, unpaid or returned.

Automatically send your invoices to customers .

Integration with Dropbox & Google Drive .
Each created invoice will be automatically uploaded to your account Comfortable and easy!

free billing and accounting program
  • Management of invoices issued and received

  • Management of investment goods

  • Management of expenses

We are up to date with the most important integrations to simplify your management and that you can focus on what matters most, your business.


Contasimple is the online billing and accounting free program that integrates all the necessary functionalities for your business

free invoice templates

Income and expense invoices

Create, send and control your invoices, delivery notes, budgets and expenses.

Electronic invoice and bill collection through POS, at your fingertips.


Customer Management

Manage your customers and suppliers by getting the most out of them.

Check your contact agenda from any device. Always at your fingertips!


Global vision

With our Dashboard you will have a global vision to support the decision making of your business.

Get to know your internal processes thoroughly.

document management

Document management

Have all the necessary documents at hand at any time and place.

Control of expenses

Control of expenses

You will know how to manage all your expenses and payments in an easier way.

Integrations for your Contasimple business


All our integrations are designed for you: Dropbox, Google Drive, Prestashop, iZettle and many more.

Try it for free for 30 days

Contasimple is the free online billing program that allows you to save time and money

Try it Free
Without credit card · No commitments

Contasimple - The invoicing, accounting and taxes application on the cloud.


Other versions



CS News